EOL_HF
Data EOL: temperature (°C), salinity and oxygen (µmol kg-1)
January 2018 - December 2022 - Temperature and Salinity
By autocorrelation + decompose function or Mann-Kendall : not possible because of gaps
## Slope SE Slope P Slope Intercept SE int. P int.
## sal_ano 0.02632235 0.0007535072 2.728093e-263 -53.18294 1.522422 2.728875e-263
## temp_ano 0.03224041 0.0040675506 2.316919e-15 -65.14189 8.218505 2.316956e-15
## F df R2 P value
## sal_ano 1220.3225 39008 0.030334909 2.728093e-263
## temp_ano 62.8254 39938 0.001570603 2.316919e-15
Temperature
Salinity
Oxygen
AOU
Daily dataset (8AM-10AM from January 2018 to December 2022) - Temperature and Salinity
Missing values : - april 2019
monthly_means_EOL2 <- ungroup(EOL_daily) %>%
mutate(Month = format(datetime, format="%m")) %>%
group_by(Month) %>%
summarise(
sal_month = mean(salinity, na.rm = TRUE),
temp_month = mean(temperature, na.rm = TRUE))
monthly_means_EOL2## # A tibble: 12 × 3
## Month sal_month temp_month
## <chr> <dbl> <dbl>
## 1 01 38.0 14.6
## 2 02 38.1 13.9
## 3 03 38.0 13.8
## 4 04 37.9 14.9
## 5 05 37.8 18.0
## 6 06 37.8 22.2
## 7 07 37.9 25.9
## 8 08 38.1 26.5
## 9 09 38.2 24.4
## 10 10 38.1 21.2
## 11 11 37.9 18.1
## 12 12 38.0 16.4
## Slope SE Slope P Slope Intercept SE int. P int.
## sal_ano 0.01730698 0.003442049 5.484206e-07 -34.96781 6.954476 5.484241e-07
## temp_ano -0.01161644 0.019925688 5.599783e-01 23.47092 40.259700 5.599784e-01
## F df R2 P value
## sal_ano 25.281821 1676 0.0148604542 5.484206e-07
## temp_ano 0.339875 1710 0.0001987178 5.599783e-01
Temperature
Salinity
Filling gaps - Moving average - Mann Kendall : Temperature (2018-2022)
Temperature
##
## Call:
## lm(formula = y ~ x, data = reg_val_ts_temp_eol_less_season)
##
## Residuals:
## Min 1Q Median 3Q Max
## -0.34204 -0.03988 0.00446 0.04380 0.20283
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 224.580500 6.298155 35.66 <2e-16 ***
## x -0.104140 0.003117 -33.41 <2e-16 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.07255 on 258 degrees of freedom
## Multiple R-squared: 0.8122, Adjusted R-squared: 0.8115
## F-statistic: 1116 on 1 and 258 DF, p-value: < 2.2e-16
## tau slope intercept
## 0.04282142 0.04045000 36.35810833
Salinity
##
## Call:
## lm(formula = y ~ x, data = reg_val_ts_sal_eol_less_season)
##
## Residuals:
## Min 1Q Median 3Q Max
## -3.02197 -0.12426 0.03126 0.14767 0.53884
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 3.791e+01 2.440e-03 15532.81 <2e-16 ***
## x 1.005e-04 2.432e-06 41.31 <2e-16 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 0.2436 on 39938 degrees of freedom
## Multiple R-squared: 0.04098, Adjusted R-squared: 0.04095
## F-statistic: 1706 on 1 and 39938 DF, p-value: < 2.2e-16
## tau slope intercept
## 0.1023034 0.0199750 -27.4444783
Oxygen
##
## Call:
## lm(formula = y ~ x, data = reg_val_ts_oxy_eol_less_season)
##
## Residuals:
## Min 1Q Median 3Q Max
## -65.320 -15.280 1.126 15.024 44.776
##
## Coefficients:
## Estimate Std. Error t value Pr(>|t|)
## (Intercept) 2.417e+02 1.852e-01 1305.08 <2e-16 ***
## x -7.905e-03 1.846e-04 -42.82 <2e-16 ***
## ---
## Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1
##
## Residual standard error: 18.49 on 39938 degrees of freedom
## Multiple R-squared: 0.0439, Adjusted R-squared: 0.04388
## F-statistic: 1834 on 1 and 39938 DF, p-value: < 2.2e-16
## tau slope intercept
## -0.1107562 -1.1655297 732.7343833